The Grim Adventures of My Little Pony: Friendship Is Magic

by CODYTHEBRONY

Rating: everyone
Tags: Comedy, Queen Chrysalis, Other, Adventure, Twilight Sparkle, Princess Celestia, Crossover, Main 6, My Little Pony: Friendship is Magic
Length: 5309

Billy wrecks his dad's lucky pants but he doesn't call the Kids Next Door for help. Billy calls Th

Billy wrecks his dad's lucky pants but he doesn't call the Kids Next Door for help. Billy calls The mane6 of "My Little Pony: Friendship Is Magic" instead. This is sort of a parody of "The Grim Adventures Of The Kids Next Door", only things are gonna be played a little differently.

Published 2012-10-08 11:20:01 UTC
Last updated 2012-10-08 11:20:01 UTC

The Grim Adventures of My Little Pony: Friendship Is Magic

In the Underworld, Satan was bored and thought of something stupid, so he decide to accidentally bring Jack O Lantern back to life and send Jack back to the real world. Jack came back, and looks for revenge on his enemies, Billy, Mandy, and Grim. He laughs evilly as the thunder crashes.

(At Billy's House)

Billy was in the living room, playing with Grim's scythe. Billy used Grim's scythe to whack an apple, which knocked down a picture on the wall after he hit it.

"Oh, he nails that one! Now, all he needs is one more shot and he'll win the Continental Breakfast Golf Tournament," Billy said.

Billy whacked another apple with Grim's scythe and it hit Harold (Billy's dad) on the forehead as he entered the room. Harold fell to the floor after the apple hit him.

"Dad!" Billy shouted before rushing over to his father. "YOU JUST MADE ME LOSE THE TOURNAMENT!"

Harold awakened and confiscated Grim's scythe from Billy.

"Look, Billy, I'm going underwear shopping for a few hours so while I'm gone, you'll be the man of the house and I suggest you act like it," Harold said.

"Man of the house? Does that mean I get to wear your lucky pants?" Billy asked.

"No, I'm the one who wears the pants in this family. You just keep an eye on things while I'm gone AND KEEP YOUR FILTHY MITTS OFF MY PANTS!" Harold shouted before leaving the house.

"So, that's a 'yes'?" Billy wondered.

Billy rushed into Harold's bedroom and took Harold's lucky pants from his closet. Billy started fooling around and while doing so, he tripped on a Derpy Hooves doll, fell down the stairs and landed on the blade of Grim's scythe, which tore a hole in Harold's pants and got stuck in them. Billy screamed when he saw the damage done to his dad's lucky pants.

"DAD'S PANTS!" Billy yelled. "What do I do? Dad's gonna sell my organs if he finds out I ripped his lucky pants! There's only one character who can help me now."

In New New York, 3012, Bender was hosting his own problem-solving service. The phone rang and Bender answered it. Billy was on the other line.

"Yeah? I'm Bender," Bender said. "Got a problem that's pesky? I'll fix it for one lousy buck."

"Uh…I dunno where to find a male deer," Billy replied.

"I'm talking about money, you idiot,"

"Oh...I dunno where to find that either,"

"YOU MEAN YOU'RE BROKE? Listen, if you want charity, call the mane six of "My Little Pony Friendship Is Magic"! They're cheap."

Bender hung up on Billy.

Back in Endsville, Billy's doorbell rang.

"Oh, thank goodness you're here!" Billy exclaimed as he opened the door.

The mane6 and Spike The Dragon were at Billy's doorstep.

"Hey, you're not the Pound Puppies!" Billy said.

"No, we're not," Twilight Sparkle replied. "I'm Twilight Sparkle and these are my friends, Pinkie Pie, Applejack, Rainbow Dash, Rarity, Fluttershy, and Spike The Dragon."

Twilight and her friends entered Billy's house.

"We're here to solve your problem." Twilight continued.

"Howdy there, I'm Applejack." said Applejack to Billy.

Billy looks at Applejack's cutiemark.

"OOH APPLES!!!" Billy bites on Applejack.

"Yeow!" Applejack yelled and she buck-kicks Billy in the face.

"So, can you help me with my problem?" Said Billy as he lays on the floor, daze.

"Oook...?" Twilight said.

Twilight and her friends tried pulling Harold's pants off of Billy but no luck.

"Those pants aren't coming off." Said Rainbow Dash.

"I have a backup plan. My friends will escort you to the Ponyville Medical Hospital so one of the doctors can find a way to remove and fix your dad's pants," Twilight explained to Billy.

"What if my dad comes home early?" Billy asked.

"I'll disguise myself as you in order to prevent him from discovering the missing pants. Rarity, can you make Billy's clothes on a pony form?"

Rarity said as she pulls out a sewing machine and clothes rugs "I sure can Darling."

"What if he figures out you're not me?" Billy Said.

"I'm sure your dad is just as stupid as you are" Said Twilight

One hour later

Pinkie Pie looks at Billy thinking it's Twilight as she said "Wow Twilight, you look like Billy!"

"That is Billy." Said Twilight as she disguised herself as Billy by wearing the clothes that Rairty made, sticking an overripe tomato onto her nose and wearing a frying pan on her head. Billy, and Twilight's Friends departed for Ponyville.

"Bye, Twilife!" Billy exclaimed as he left his house.

"It's Twilight!" Twilight corrected. "Man, what an idiot."

Soon after Billy, and Twilight's friends left, Billy's doorbell rang again.

"I'll get it!" Twilight exclaimed, badly impersonating Billy.

Twilight opened the door. Jack O Lantern was at Billy's doorstep.

"I'm baack! I've come back to-. Who are you?" Jack asked, glaring at Twilight.

Twilight laughed stupidly. "I'm Billy," she answered.

Jack knew Twilight was lying. "You're not Billy," Jack said.

"My favorite kind of yogurt is the kind that comes out of my belly button," Twilight said stupidly.

Jack slapped Twilight. "OW!" Twilight cried.

"Tell me who you are before I get rough on you!" Jack threatened.

"I'd like to see you try!" Twilight replied using her normal voice.

Billy was in The Friendship Express with Spike and the other five ponies. He was annoying them by pushing random buttons, playing loud rock and roll music on the radio, dripping his mucus everywhere and accidentally whacking them with Grim's scythe.

Spike coughed up a scroll, it was a letter from Princess Celestia.

"Guys! we have a letter from the Princess! It says Chrysalis, Queen of the changelings is making a cave that turns creatures evil and we have to destroy it!".

"What about Twilight?" Fluttershy questioned.

"We'll do this without her! Let's go!" Rainbow Dash answered.

The long end of Grim's scythe knocked Spike. The train reluctantly took the detour to Queen Chrysalis's lair.

Back at Billy's house, Jack was torturing Twilight, who was beaten up and tied up in a chair with a TV in front of her.

"For the last time, tell me who you are," Jack demanded.

"What if I refuse?" Twilight asked.

Jack turned on the TV. Then, Fred Fredburger appeared on the screen.

"My Name is Fred Fredburger! I'm on TV and sometimes, I like TV shows that have talking Sponges."

"NO!" Twilight cried.

"YES! Sometimes I like TV shows that have talking penguins in a city zoo. And sometimes, I like TV shows that have friendly toy monsters with music, dance, colorful cartoons and simple life lessons that will get you and your children up off the floor to learn and dance along instead of Penguins. But sometimes, I just like dancing penguins."

"MAKE HIM STOP! MAKE HIM STOP!" Twilight yelled.

It wasn't long before Twilight finally cracked. "MAKE HIM GO AWAY! MAKE HIM GO AWAY!" she begged Jack

"You're gonna reveal your identity unless you want Numbskull here to take you back to the underworld with him," Jack told Twilight as he turned up the volume VERY, VERY loudly.

"I also love shows that have monsters and shows with a teenage robot, and shows with fairies that have magical powers called Winx. And I also love shows that have a boy with flaming hair and his talking dog and two genius sisters who experiments on him. Yes." Said Fred Fredburger as Jack turn the TV volume up VERY LOUDLY.

"NO, NOT THAT! ANYTHING BUT THAT! You win! I'll tell you everything!" Twilight cried helplessly.

"Then, spill it!" Jack demanded. "Tell me everything."

"Hey! can I come out of the TV? I have to go poo-poo!" Questioned Fred Fredburger.

One Long Explanation Later...

"So, you're from a world where Earth ponies, unicorns, pegusi live and was from a kingdom called Canterlot, eh?" Jack questioned.

"Yes," Twilight answered. "Now let me go!"

Jack disguised himself as Twilight by painting himself purple, wearing a wig that looks like Twilight's mane, a fake tail that look like Twilght's, drawing Twilight's cutiemark on his pants, and using a purple unicorn horn.

"Where are you going and why are you dressed like me?" Twilight questioned.

"I'm gonna pay a visit...to your friends," Jack answered as he laughs evilly and departed for Equestria.

"Not if I, Twilight Sparkle can help it!"

After Jack left Billy's house, Twilight untied herself. Then, she tried to leave Billy's house. When Twilight opened the door, she saw Grim and Mandy at the doorstep.

"Where's my scythe, Billy?!" Grim demanded.

The train crashed into a boulder due to Billy's messing around. Inside the lair, The Ponies and Spike were searching for Chrysalis.

"Applejack, are you sure it was a good idea to leave Billy alone on the train?" Fluttershy asked.

"Do you wanna go back and stay with Billy?" Applejack asked.

"Good point." Said Rarity.

The Ponies and Spike eventually found Chrysalis, who had just finished creating her evilization cave.

"FINALLY!" Chrysalis exclaimed. "With this evilization cave, I can create more evil minions to help me rule over Equestria!"

Chrysalis laughed evilly until Billy showed up out of nowhere and startled her.

"Excuse me! Are you in line for the bathroom?" questioned Billy"

"Why no. Go right ahead." Said Chrysalis as she didn't notice.

Billy says as he goes in, "Thank you!"

"You're welco-. Hey, that ain't no toilet! Get outta there right now!" Chrysalis yelled as she went inside the evilization cave.

"Just when you think Billy can't get any stupider, he does," Rainbow Dash commented.

"Is this the flusher?" Billy asked when he found the button that was supposed to activate the evilization cave.

"NO, DON'T TOUCH THAT!" Chrysalis shouted.

Billy activated the evilization chamber, thinking it would flush. Billy and Chrysalis screamed while being electrocuted until the evilization cave exploded.

Back at Billy's house, Twilight was tied up again.

"For the last time, Billy, hand over my scythe!" Grim demanded.

"I don't think that's Billy." Said Mandy.

"I already told you I'm not Billy and I don't have your stupid scythe!" Twilight shouted.

"Yeah, right!" Grim replied. "I might be powerless without my scythe but I still have my 'bone of barnacles' which is almost as good and it will force you to tell the truth."

Grim showed Twilight the "bone of barnacles".

"What's that thing?" Twilight asked in a scared way.

"Oh, you'll see," Grim answered evilly.

Grim was about to use the "bone of barnacles" on Twilight when he suddenly fell to the floor.

"Something terrible just happened!" Grim cried.

"Like I care." Mandy said sarcastically

"Tell someone who cares!" Twilight retorted as she untied herself again. she threw the frying pan on his head and the overripened tomato on his face onto the ground. "I don't know why you're wearing that Halloween costume or where you bought that toy but I'm out of this nuthouse!"

Twilight started walking towards the exit.

"Billy, wait! You have to help me!" Grim begged. "My powers are weakening! An evil changeling has fused with my scythe!"

Twilight realized Grim was talking about Chrysalis so she let Grim and Mandy accompany her to Canterlot.

After the explosion at Chrysalis's lair, The ponies and Spike saw what appeared to be a giant cloaked figure wearing Harold's lucky pants and changeling wings, having Grim's scythe in its hand and two skulls.

"YES! I CAN FEEL THE POWER OF THE UNDERWORLD FLOWING THROUGH ME!" Chrysalis exclaimed.

"No, I think that's me. I just peed," Billy commented.

"What is that thing?" Fluttershy asked in a scared way.

"You can find out by being the first to be assimilated by...THE CHANGELING REAPER!" the Changeling Reaper shouted.

The ponies and Spike ran and screamed like cowards and had a chance to escape and sees a changeling gets zapped by The Changeling Reaper and it became part of the Changeling Reaper.

"It was only the first to assimilate with us," the Changeling Reaper said. "Soon, more life forms will assimilate."

The ponies and Spike came in Canterlot and see Princess Celestia.

"Princess Celestia, Chrysalis is going to takeover the land by being VERY powerful!" Said Applejack.

"This can't be good." Princess Celestia said. "And where's Twilight?"

"Right here." Jack answered from out of nowhere.

The Ponies, Spike and Celestia turned around and saw Jack disguised as Twilight. The Princess and her guards fell for the disguise but the ponies and Spike didn't.

"You're not Twilight." said Applejack.

"Of course I am," Jack replied.

"Where were you, Twilight?" Celestia asked.

"I was on a reconnaissance mission. I've recently discovered that Chrysalis has planted a virus that causes ponies to go crazy," Jack explained.

"You're the one who's crazy! Tell us who you are and what you did to Twilight!" Rainbow Dash demanded.

There was a moment of silence.

""You've obviously fallen victim to the crazy virus. Perhaps you should be locked up in the dungeon so you don't contaminate anyone," Jack said to the ponies and Spike.

The guard agreed, "Great idea Twilight."

"THAT'S NOT TWILIGHT!" Rarity shouted.

The guards dragged the ponies and Spike to the dungeon.

"What do we do about Chrysalis?" Spike asked.

"My friends have already been infected by the crazy virus. We will find an antidote," Jack replied. "But first, there's gonna be a few changes around here. From now on, everyone will refer to me as...Jack."

"Jack?! But, that's a boy's name," said Spike

Jack glared at Spike.

"You got a problem with that, Dragon Boy?" Jack asked.

"No, Jack," Spike answered.

"Good. Now, bring all your friends here so I can proclaim my new dictation,"

The guards obeyed Jack.

"Wait. I only tell the guards what to do. The ponies were right. You're not Twilight!" Princess Celestia said as she found out that it's not Twilight.

"I'm afraid you know too much Princess." said Jack as he punched Celestia in the head. "Take her to the dungeon. I'll rename this castle "Jackerlot" and the whole country "Jackestri"." Jack said as the guards take the unconscious Celestia to the dungeon.

Meanwhile, the Changeling Reaper started its rampage.

Irwin was having a party at his house for some reason. His doorbell rang and he opened the door.

"Yo, you're just in time for some cake," Irwin said.

Irwin screamed when he saw the Changeling Reaper.

"ASSIMILATE!" the Changeling Reaper yelled.

"WAIT!" Billy interrupted. "Can we have some cake before we assimilaxate?"

"NO!" the Changeling Reaper answered before assimilating Irwin.

Sperg was beating up Pud'n and Iron Will showed up to rescue Pud'n. Sperg stopped beating up Pud'n and started beating up Iron Will instead.

The Changeling Reaper showed up. Then, Iron Will, Sperg & Pud'n were assimilated.

Princess Cadance and Shining Armor are out on a honeymoon, and watched Dracula do the disco.

The Changeling Reaper showed up. Then, Dracula, Cadance and Shining Armor were assimilated.

The Cutiemark Crusaders and Mindy and two girls were arguing over who they thought was better: Smarty Pants or Sassy Cat.

"SMARTY PANTS!" The Cutiemark Crusaders shouted holding up a Smarty Pants doll

"SASSY CAT!" Mindy shouted while holding up a Sassy Cat toy.

"SMARTY PANTS!"

"SASSY CAT!"

"ASSIMILATE!" the Changeling Reaper shouted out of nowhere.

"ASSIMILATE!" The Cutiemark Crusaders, Mindy and her girls shouted in unison.

The Cutiemark Crusaders, Mindy and her girls were confused as to what "assimilate" meant.

The Changeling Reaper showed up. Then, The Cutiemark Crusaders, Mindy and her girls were assimilated.

Twilight, Grim and Mandy were traveling to Canterlot. They had no transportation so they had to run the whole way there by having Grim and Mandy ride on Twilight.

"The Changeling Reaper is getting more powerful!" Grim said. "I can feel it, Billy."

"GET THIS THROUGH YOUR THICK SKULL! I'M NOT BILLY, I'M TWILIGHT SPARKLE!" Twilight snapped.

When the 3 arrived at Canterlot, they saw that Jack's statue had replaced Celestia's.

"Oh, no. Not HIM again," Twilight groaned, not wanting to face Jack again.

Twilight, Mandy, and Grim entered the castle and throne and Mandy and Grim were shocked when he saw Jack.

"Oh my goodness it's you!" Grim said in shock.

"Jack 'O' Lantern!" Mandy said in surprise.

"Well hello Grim, and Mandy." said Jack as he sees them.

Twilight questioned "Wait! You 2 know him?"

"Yes." Grim answered. "He was once a prankster in medieval Endsville, which is presumed to maybe be the 1500-1600s. Despite being pleasant, he loved to pull pranks on the townspeople sawing chair legs, changing road signs, 'kick me' signs, that sort of stuff. He is also shown to have presumably invented a couple pranks too. He had a problem with it, doing it constantly, apparently bad enough to force the townspeople to have an intervention about him, and ultimately, getting rid of him by sending their queen a prank gift and framing Jack for it. She sent a knight to his house to kill him. And I came to reap his soul, the prankster refused to go. Jack managed to steal my scythe by tickling me into dropping it, and struck a deal with me, the scythe for immortality, so he could keep playing pranks forever. Unfortunately, I didn't like being tricked, so I lopped off his head after giving him immortality, causing Jack to be shunned by society and forcing him to only be able to play his pranks on Halloween. Years ago, on Halloween, he ran into Billy with my scythe. He tricked Billy the same way he tricked me, stole the scythe, and then used it to possess pumpkins with the spirits of demons, with the ultimate goal of chopping off my head with the scythe as revenge. After Jack was defeated, I sent him to the underworld. There, he was beaten up by many humorless demons for pulling a prank on them."

"How did he got out of the Underworld anyway?" Mandy questioned.

"You wanna know how, eh?" Jack said. "Well Satan was bored and thought of something stupid, so he decide to accidentally bring me back to life and send me back to the real world. And now I'm going to fulfill my dream, taking over the world and ending Grim, Billy, and Mandy!

"You know you won't get away with it." said Mandy.

"How?" Jack asked. "Grim is useless without his scythe and everyone will still think your new unicorn friend is your idiot friend Billy."

"You're not Billy?" Grim questioned Twilight.

"I told you." Mandy said.

"Of course not!" Twilight answered. "What was your first clue?"

"QUIET! SHUT UP!" Jack interrupted. "Before I knock you three silly. Guards! Throw them in the dungeon!"

The guards dragged Twilight, Grim, and Mandy to the dungeon.

"Now where's the real Billy?" questioned Jack.

"Jack! We've got a problem!" Yelled a guard.

Jack looks through a telescope and sees The Changeling Reaper assimilating The Wonderbolts. "Oooh! Cool little flying pony!" Yelled Billy.

"So that's where he is. I'm gonna build a giant robot to help destroy that thing that was holding Billy, then send Billy into the dungeon, and until tomorrow, kill the ones who sent me to the Underworld!" Said Jack.

Twilight, Grim, and Mandy were thrown into the dungeon.

"Well, ain't this a perfect Saturday!" Twilight ranted. "First, I'm impersonating a half-wit boy! Second, an evil headless man with a pumpkin head impersonating me is trying to dominate Canterlot! Third, I'm stuck in a dungeon with a noseless human girl and a skeleton!"

"Twilight, is that you?" a voice asked.

They saw Spike and the other ponies Pinkie Pie, Rairty, Fluttershy, Rainbow Dash, Applejack and a wounded Princess Celestia.

"Guys! Thank goodness." Twilight exclaimed. "Everypony around here has gone crazy!"

"Hey Twilight, who's your friends?" questioned Pinkie.

"Oh, they're just human kids, a girl and a boy in a Halloween costume". Twilight said.

"He's not a kid." Mandy said. "He's the Grim Reaper."

"Enough of this!" Grim Shouted "You have no idea of the supernatural powers I possess."

"Yeah right." Rainbow Dash replied.

"It's true." Grim said. "We can help you defeat Jack and The Changeling Reaper."

"We can?" questioned Mandy.

"Why would you 2 help us?" Twilight questioned.

"Because I'm sick of everyone and their Aunt Figg always stealin' my scythe," Grim answered.

Twilight thought for a moment. Right now, she needed all the help she could get.

"Okay, you can help," Twilight told Grim.

"Wait!" Celestia exclaimed. "You have to use these." Spike opened a box which reveled to be The Elements of Harmony.

"The Elements of Harmony." The six ponies spoke in unison.

"You must use their powers to stop The Changeling Reaper and that evil pumpkin headed maniac!" Celestia said.

The ponies put on The Elements of Harmony.

"Jewlery? Are you goin' to a fight or a fashion show?" Grim remarked.

"Just get on with it." Mandy replied.

"Don't worry about me." Princess Celestia said. "I'll be fine."

Grim gave Mandy and the ponies an evil grin, thus scaring the ponies except Mandy.

"This might hurt a bit," Grim said.

Grim laughed evilly as he began using his "bone of barnacles" on Mandy and the ponies, who screamed hysterically except Mandy as the "bone of barnacles" violently grabbed them with its tendrils.

"This won't end well." Spike said.

Somewhere in Equestria, Billy started singing while the Changeling Reaper continued its rampage.

"Never gonna give you up! Never gonna let you down! Never gonna run around and desert you! Never gonna make you cry! Never gonna say goodbye! Never gonna tell a lie and hurt you!"

"WILL YOU SHUT UP?!" the Changeling Reaper snapped. "Augh! I wish I had never assimilated you in the first place!"

The J.A.C.K.R.O.B.O.T. (Jack's robot) appeared with Jack in charge and Bon-Bon, Lyra & Carrot Top manning the controls.

A computer voice revealed the acronym for Jack's robot:

Jumping
And
Collect
Key
Rotten
Oranges
Boorishly
On
Thursdays

"What kind of acronym is that?" Jack snapped.

"Well, if you weren't in such a rush, maybe I would've thought of a better one," Bon-Bon replied.

Billy saw Jack inside the J.A.C.K.R.O.B.O.T.

"Hiya, Jack!" Billy exclaimed. "Did you come to assimilamalamalate or whatever it is we're doing?"

"No, Billy. You're in the way of my world domination so I'm taking you down," Jack said.

"Oh, okay,"

"THEN LET'S FIGHT!" the Changeling Reaper shouted.

The fight began. The J.A.C.K.R.O.B.O.T. fired apples at the Changeling Reaper but there was no effect.

"Hey, I just cleaned this cloak!" the Changeling Reaper complained as it wiped the apple juice off its cloak.

"Our apple blasters aren't having any effect!" Carrot Top complained.

"You're firing apples? That thing is a supernatural force of science! Where's that laser I ordered?" Jack ranted.

(At Sweet Apple Acres)

Granny Smith opened a box with the laser Jack ordered, fooling around with it, and blasted at the apple trees.

"Nope." Big Macintosh said.

(Back To The Battle)

The fight continued.

"Hypersonic Hat! GO!" Jack shouted.

The J.A.C.K.R.O.B.O.T. removed its hat and threw it at the Changeling Reaper. The Changeling Reaper used its butt to deflect the hat back at the J.A.C.K.R.O.B.O.T.

"What the-" Jack said.

The hat hit and knocked down the J.A.C.K.R.O.B.O.T. Then, the Changeling Reaper approached the J.A.C.K.R.O.B.O.T.

"YOU WILL ASSIMILATE!" the Changeling Reaper yelled as it was about to assimilate the J.A.C.K.R.O.B.O.T.

"Hey, you with the pants!" a voice interrupted.

The Changeling Reaper turned around and saw a giant skeletal samurai with Mandy and the ponies manning the controls and Grim being the shield. Billy saw Twilight inside the skeletal samurai.

"Hi, Twiliy!" Billy exclaimed. "Did you come to assassinate or whatever it is we're doing?"

"MY NAME IS TWILIGHT SPARKLE! GET IT RIGHT!" Twilight snapped.

"Can it, you two!" Grim shouted. "I'm here for my scythe!"

"And we're here to save Equestria!" Twilight added.

"And I'm here for the all-you-can-eat pancake breakfast!" Billy added. "But since there's no pancakes..."

"LET'S FIGHT!" the Changeling Reaper shouted.

The Changeling Reaper charged at the skeletal samurai. Then, the Changeling Reaper started whacking Grim's head repeatedly with his own scythe.

"Ow! That hurts! Quit it!" Grim yelled in pain. "Guys, do something!"

"Gimme a break!" Mandy replied. "I'm not used to this kind of armor."

The skeletal samurai prepared for an attack.

"CONE...OF...BONE!" The girls and Grim shouted in unison.

The skeletal samurai started shooting bones from its sword at the Changeling Reaper. The Changeling Reaper used its butt to deflect the bones. While it was bending down, Billy found a bacon sandwich.

"Oooh, a bacon sandwich!" Billy exclaimed. "Is anyone gonna eat this?"

Billy ate the bacon sandwich.

"Hey, who's shootin' bones at my butt?!" Billy shouted.

"Our attacks aren't working!" Twilight complained.

Grim noticed that the Changeling Reaper was wearing Harold's lucky pants. This made him realize that Harold's pants were the source of all the Changeling Reaper's power.

"It's those pants!" Grim said. "I remember Harold tellin' me about them."

(In a flashback)

In Billy's living room, Harold wearing his lucky pants while Grim sits down, tells him about his lucky pants.

"Yep. My lucky pants." Said Harold. "These were the same pants Gladys and I got married. Yes siree."

"You call them lucky?" Grim questioned.

"Nope." Harold answered. "They're lucky because they're immune to lasers, supernatural energies, and apples."

(Back at the fight)

The J.A.C.K.R.O.B.O.T. approached the Changeling Reaper. Grim saw Jack inside the J.A.C.K.R.O.B.O.T.

"Jack, you're our only hope!" Grim shouted. "You have to pants the Changeling Reaper! It's the only way to defeat it!"

Jack thought for a moment. "I have a better idea," he replied.

The J.A.C.K.R.O.B.O.T. tapped the Changeling Reaper on the shoulder. The Changeling Reaper turned around and saw the J.A.C.K.R.O.B.O.T.

"Jack, what are you doing?" Twilight shouted.

Jack simply let the Changeling Reaper assimilate the J.A.C.K.R.O.B.O.T. so he'd be even more powerful than before. Jack, Bon-Bon, Lyra & Carrot Top became part of the Changeling Reaper.

"YES! THIS IS POWER! NOW, I CAN FINALLY RULE THE WORLD!" the Changeling Reaper yelled.

"Oh, no! Jack has fused with the Changeling Reaper!" Grim cried.

"That's right! You pathetic ponies are nothing compared to what I've become!" Jack shouted.

Twilight, controlling the skeletal samurai, punched the Changeling Reaper. "Jack!" Shouted Twilight. "Your reign of terror is going to end! I will not stand by while you make innocent creatures suffer."

"Bring it on baby cakes!" Jack shouted.

"Are we done for?" Fluttershy questioned.

"We only have one more chapter in the fan fiction after this fight." Mandy answered.

The skeletal samurai is armed with a GE M134minigun, dual micro uzis, and a mossburg compact cruiser. The Changeling Reaper, however, is armed with his own arsenal of weapons including retractable wristblades, dual black Beretta M92Fs,and a M1A1 flamethrower and they clash in a violent, drawn-out battle. Twilight eventually gains the upper hand and prepares to shoot Jack with her mossburg.

"Go ahead pony." demanded Jack. "Shoot me. Shoot me and all the victims".

Twilight then drops her gun and surrenders, allowing The Changeling Reaper to gain the upper hand.

"Say hi to my mother for me!" said Jack as he prepares to shoot them. "Oh! And Harvey Birdman."

Just as he is about to kill them, Harold showed up and interrupted the fight.

"HEY, YOU! GIMME BACK MY LUCKY PANTS!" Harold ordered the Changeling Reaper. "GIVE, THEM, BACK!!!"

Harold jumped at the Changeling Reaper and pulled its pants down.

"Now's your chance, Guys!" Grim shouted.

The ponies combine their powers and fire a giant rainbow, just like they did when they defeated Night Mare Moon and Discord, causing an explosion much like Rainbow Dash's sonic rainboom and strike the Changeling Reaper at its weak spot. Then, the Changeling Reaper exploded.

"NO!" the Changeling Reaper yelled in defeat.

During the explosion, Harold got his pants back.

"I wear the pants around here!" Harold shouted as he walked off. "Me! Me me me! My pants! Me!

The Changeling Reaper's victims were unassimilated one by one.

Its victims included:
A changeling, Bon-Bon, Lyra, Carrot Top, Chrysalis, Derpy Hooves, Iron Will, Princess Cadance, Shining Armor, Apple Bloom, Sweetie Belle, Scootaloo, The Wonderbolts, Billy, Jack, Irwin, Pud'n, Sperg, Dracula, Mindy and her 2 friends, Ian Isberto, Katie Mealey, Cody Webb, Dexter, Dee Dee, Mandark, The Powerpuff Girls, Ed, Edd, Eddy, Mac, Bloo, Goo, Ami, Yumi, Lazlo, Raj, Clem, Adam Lyon, Andy (from Squirrel Boy), Chowder, Panini, Gorganzola, Flapjack, Johnny Test, Finn, Jake, Gumball Watterson, Darwin Watterson, Tommy Pickles, Chuckie Finster, Phil and Lil, Angelica Pickles, Susie Carmichael, Dil Pickles, Kimi Finster, Ren Hoek, Stimpy, Timmy Turner, Jimmy Neutron, Jenny/XJ9 Wakeman, Fanboy, Chum-Chum, Nostalgia Critic, Angry Video Game Nerd, Billy Mays, Frollo, Gaston, Panty, Stocking, Ash Ketchum, Amy Rose, Sonic The Hedgehog, Tails, Bart Simpson, Lisa Simpson, Maggie Simpson, Stewie Griffin, Bobby Hill, Rallo Tubbs, Cleveland Brown Jr., Tina Belcher, Gene Belcher, Louise Belcher, Hal The Koopa, Jeff The Goomba, and MissingNo.

It took a while to free all the Changeling Reaper's victims since there were so many. Grim got his scythe back and the heroes defeated Jack.

(inside the Canterlot throne)

Princess Celestia holds a ceremony in Canterlot, honoring the ponies, Mandy and Grim for defeating Jack and The Changeling Reaper.

"We are gathered here today to once again honor the heroism of these six ponies and 2 new friends who stood up to the Changeling Reaper and saved Equestria." Announced Celestia.

Jack, who escaped vows to have his revenge, but Mandy shoots him in the chest then the head. "OK he's dead. Alright? We won't be seeing him again." said Mandy to the reader.

"And have you learned something from this adventure Twilight?" Princess Celestia questioned.

"I have Celestia." Twilight answered. "I've learned that even though your world may be in danger, friends from another world may help you too. And maybe, just maybe, two worlds may become one after all."

Just then, Harold showed up. He thought Twilight was Billy because Twilight was still wearing Billy's clothes.

"THERE YOU ARE!" Harold shouted as he yanked Twilight's ear. "You're in big trouble for stealing my lucky pants, Billy!"

"But I'm not Billy!" Twilight complained.

"Oh, I ain't fallin' for that one again, mister!"

Twilight cried like a baby while Harold dragged her away. Nobody did anything about it.

"That Billy is a weird kid," Pinkie commented.

"Totally," Rainbow Dash agreed. "Hey, where's Twilight?"

"Right here," Billy answered from out of nowhere.

The ponies, the Princess, Spike, Mandy & Grim turned around and saw Billy painted in purple, wearing a wig that looks like Twilight's mane, a fake tail that look like Twilight's, drawed her cutiemark on his pants, and using a purple unicorn horn.

"I'm Twilife Sprinkle and I'm a big egghead and a know-it-all. And there's gonna be a few changes around here." Billy said, badly impersonating Twilight.

The ponies, Celestia, Spike, Mandy and Grim throw various items at him in response to prevent what happened that day. "Ow! Ow! I was just joking! I was only kidding! Ow!" Billy said as he got hit many times.

THE END

Cool Crossovers:

Ed, Edd, n' Stewie = Ed, Edd, n' Eddy / Family Guy
A title card shows Stewie Griffin angrily chasing Ed and Edd while carrying his ray gun.

Evil Cat Carne = Evil Con Carne / Catscratch
A title card shows Hector Con Carne on Waffle's head, and Gordon and Mr. Blik dressed as General Skarr and Major Dr. Ghastly.

My Life as a Teenage Mutant Ninja Turtle = My Life as a Teenage Robt / Teenage Mutant Ninja Turtles
A title card shows Michelanglo skateboarding on the sidewalk.

American Bloo! = American Dad! / Foster's Home For Imaginary Friends
A title card shows The Smith Family and Bloo dressed as Stan Smith.

Prometheus and SpongeBob = Prometheus and Bob / SpongeBob SquarePants
A title card shows Prometheus and Spongebob.